Gold and silver mechanical component used for Ressence's magnetic transmission on oil-filled watches on a white background. Gold and silver mechanical component used for Ressence's magnetic transmission on oil-filled watches on a white background, vertical image

MAGNETIC TRANSMISSION

Transmission system developped for our oil-filled watches, to the drive the ROCS

Informational graphic detailing how Ressence's magnetic transmission functions on its oil-filled watches.
INNOVATIVE WATCHMAKING

The ROCS's are driven by the minute axle of a calibre. As, in TYPE 3, TYPE 5, TYPE 7 and TYPE 10, the ROCS is physically separated from the rest of the watch - because it is suspended in oil - we developed a magnetic transmission. Several micro magnets, connected to each other, are positioned inside the upper half and the lower half. That way the minute information can be transmitted from the movement to the ROCS even if the magnets are separated by a titanium grade 5 membrane.

MAGNETIC FIELDS PROTECTION

We use extra small magnets measuring only 1 mm diameter and 0.5 mm thick. They are physically positioned far from the regulating organ.

We developed extra strong magnetic conductors to reduce the spread of magnetic fields. They concentrate the fields in loops
around the magnets.

The residual fields are deflected by a specially designed alloy protecting the regulating organ in the same way that a Faraday cage would do for electro-magnetic fields.

Informational graphic detailing how Ressence's micro-magnets in the magnetic transmission functions on its oil-filled watches.